APA

Raposo A. J., Sykes M. A., World Petroleum Congress (15th. : 1997 : Beijing) & Sykes M. A.Exploration for deep water reservoirs offshore West Africa. : .

Chicago

Raposo António J.M, Sykes Mark A, World Petroleum Congress (15th. : 1997 : Beijing) and Sykes Mark A.Exploration for deep water reservoirs offshore West Africa. : .

Harvard

Raposo A. J., Sykes M. A., World Petroleum Congress (15th. : 1997 : Beijing) and Sykes M. A.Exploration for deep water reservoirs offshore West Africa. : .

MLA

Raposo António J.M, Sykes Mark A, World Petroleum Congress (15th. : 1997 : Beijing) and Sykes Mark A.: . .